1 # Air Quality Sensor library 2 3 This library implements support for two air quality sensors, the PMSA003i and 4 the SGP30 for use with the periph.io hardware library. 5 6 7 ## PMSA003i 8 9 The PMSA003i is a digital particle concentration sensor which can be used to 10 obtain the number of suspended particles in the air. You can purchase the 11 sensor from a variety of places, including [AdaFruit](https://www.adafruit.com/product/4632). 12 13 The datasheet can be [found here](https://cdn-shop.adafruit.com/product-files/4632/4505_PMSA003I_series_data_manual_English_V2.6.pdf). 14 15 16 ## SGP30 17 18 The SGP30 is a gas sensor that can measure CO<sub>2</sub> and Total Volatile 19 Organic Compunds (TVOC) in the air. You can purchase the sensor from the usual 20 places, including from [AdaFruit](https://www.adafruit.com/product/3709). 21 22 The datasheet can be [found here](https://cdn-learn.adafruit.com/assets/assets/000/050/058/original/Sensirion_Gas_Sensors_SGP30_Datasheet_EN.pdf).